ABAP Select data from SAP table DPWTY_HEADERDATA_RECALL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DPWTY_HEADERDATA_RECALL table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to DPWTY_HEADERDATA_RECALL. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the DPWTY_HEADERDATA_RECALL table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_DPWTY_HEADERDATA_RECALL TYPE STANDARD TABLE OF DPWTY_HEADERDATA_RECALL,
      WA_DPWTY_HEADERDATA_RECALL TYPE DPWTY_HEADERDATA_RECALL,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <DPWTY_HEADERDATA_RECALL> TYPE DPWTY_HEADERDATA_RECALL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DPWTY_HEADERDATA_RECALL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DPWTY_HEADERDATA_RECALL
  INTO TABLE IT_DPWTY_HEADERDATA_RECALL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DPWTY_HEADERDATA_RECALL
*  INTO TABLE @DATA(IT_DPWTY_HEADERDATA_RECALL2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_DPWTY_HEADERDATA_RECALL INDEX 1 INTO DATA(WA_DPWTY_HEADERDATA_RECALL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DPWTY_HEADERDATA_RECALL ASSIGNING <DPWTY_HEADERDATA_RECALL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DPWTY_HEADERDATA_RECALL>-CLMNO = 1.
<DPWTY_HEADERDATA_RECALL>-DPCLMTY = 1.
<DPWTY_HEADERDATA_RECALL>-DPCLMTY_DES = 1.
<DPWTY_HEADERDATA_RECALL>-DPSTATUS = 1.
<DPWTY_HEADERDATA_RECALL>-DPSTATUS_DES = 1.

ENDLOOP.

LOOP AT IT_DPWTY_HEADERDATA_RECALL INTO WA_DPWTY_HEADERDATA_RECALL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DPWTY_HEADERDATA_RECALL-REFNO, sy-vline,
  WA_DPWTY_HEADERDATA_RECALL-DPREJCD, sy-vline,
  WA_DPWTY_HEADERDATA_RECALL-DPREJCD_TXT, sy-vline,
  WA_DPWTY_HEADERDATA_RECALL-CLMGRP, sy-vline,
  WA_DPWTY_HEADERDATA_RECALL-CLMGRP_TXT, sy-vline,
  WA_DPWTY_HEADERDATA_RECALL-H_PNTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DPWTY_HEADERDATA_RECALL you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_DPWTY_HEADERDATA_RECALL TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_DPWTY_HEADERDATA_RECALL INTO WA_DPWTY_HEADERDATA_RECALL.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field CLMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DPWTY_HEADERDATA_RECALL-CLMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPWTY_HEADERDATA_RECALL-CLMNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DPWTY_HEADERDATA_RECALL-PARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPWTY_HEADERDATA_RECALL-PARNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLMNO_RCL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DPWTY_HEADERDATA_RECALL-CLMNO_RCL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPWTY_HEADERDATA_RECALL-CLMNO_RCL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DPWTY_HEADERDATA_RECALL_STR, 
CLMNO TYPE STRING,
DPCLMTY TYPE STRING,
DPCLMTY_DES TYPE STRING,
DPSTATUS TYPE STRING,
DPSTATUS_DES TYPE STRING,
REFNO TYPE STRING,
DPREJCD TYPE STRING,
DPREJCD_TXT TYPE STRING,
CLMGRP TYPE STRING,
CLMGRP_TXT TYPE STRING,
H_PNTEXT TYPE STRING,
PNTEXT TYPE STRING,
CLOSE_DATE TYPE STRING,
CLOSED TYPE STRING,
PARNR TYPE STRING,
PARTX TYPE STRING,
SUM_MAT TYPE STRING,
SUM_MAT_CRNCY TYPE STRING,
SUM_FR TYPE STRING,
SUM_FR_CRNCY TYPE STRING,
SUM_SUBL TYPE STRING,
SUM_SUBL_CRNCY TYPE STRING,
CLMNO_RCL TYPE STRING,
CLMTY_RCL TYPE STRING,
RCL_VALID_FROM TYPE STRING,
RCL_VALID_TO TYPE STRING,
CHNGBY TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CREADAT TYPE STRING,
VERSN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DPWTY_HEADERDATA_RECALL_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_DPWTY_HEADERDATA_RECALL_STR-CLMNO sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPCLMTY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPCLMTY_DES sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPSTATUS sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPSTATUS_DES sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-REFNO sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPREJCD sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-DPREJCD_TXT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLMGRP sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLMGRP_TXT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-H_PNTEXT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-PNTEXT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLOSE_DATE sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLOSED sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-PARNR sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-PARTX sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_MAT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_MAT_CRNCY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_FR sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_FR_CRNCY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_SUBL sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-SUM_SUBL_CRNCY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLMNO_RCL sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CLMTY_RCL sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-RCL_VALID_FROM sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-RCL_VALID_TO sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CHNGBY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CREABY sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CHNGDAT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-CREADAT sy-vline 
WA_DPWTY_HEADERDATA_RECALL_STR-VERSN sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.